Iowa DOT

Volume of Traffic on the Primary Road System

Route	2013	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2013				Motorcylces	Cars, vans and pickups	Total trucks and buses	Single unit trucks				Combination trucks				All vehicles	Trucks and buses
	Primary route section description							Single unit trucks				Combination trucks
	Primary route section description							Buses	2Axles	3Axles	4 or more axles	4 or less axles	5Axles	6 or more axles	Multiple trailers
20	40 Hamilton COUNTY
20	IA 17 & CO RD R21 WEST INTCHG	Rural	1.399	8500	42	6993	1466	38	171	41	4	121	1010	35	46	11892	2051
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.311	870	4	671	195	5	21	5	1	16	137	5	6	271	61
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.329	850	4	647	200	3	13	3	0	18	150	5	6	280	66
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.298	300	1	248	50	2	10	2	0	4	29	1	1	89	15
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.298	300	1	252	47	3	13	3	0	3	23	1	1	89	14
20	WEST LIMITS OF WEBSTER CITY	Rural	2.789	9600	46	7770	1784	41	182	44	5	151	1261	44	57	26774	4976
20	EAST LIMITS OF WEBSTER CITY	Municipal	0.248	9600	46	7770	1784	41	182	44	5	151	1261	44	57	2381	442
20	WEST LIMITS OF WEBSTER CITY	Rural	0.505	9600	46	7770	1784	41	182	44	5	151	1261	44	57	4848	901
20	IA 17 & SUPERIOR ST EAST INTCHG	Municipal	1.006	9600	46	7770	1784	41	182	44	5	151	1261	44	57	9658	1795
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.348	1030	5	909	116	5	23	6	1	8	68	2	3	358	40
20	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.267	1010	5	898	107	4	17	4	0	8	68	2	3	270	29
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.373	1200	6	1015	179	8	36	9	1	13	104	4	5	448	67
20	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.292	1250	6	1071	172	8	36	9	1	12	98	3	4	365	50
20	EAST LIMITS OF WEBSTER CITY	Municipal	1.243	9200	45	7499	1656	34	150	36	4	143	1194	41	53	11436	2058
20	CO RD R38 INTERCHANGE	Rural	3.734	9200	45	7499	1656	34	150	36	4	143	1194	41	53	34353	6184
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.230	60	0	43	17	1	3	1	0	1	11	0	0	14	4
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.329	90	0	77	12	1	6	1	0	0	3	0	0	30	4
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.249	110	1	99	11	1	6	1	0	0	2	0	0	27	3
20	NORTH-EAST SOUTH-EAST LOOP	Rural	0.199	60	0	45	15	0	1	0	0	1	11	0	0	12	3
20	US 69 INTERCHANGE	Rural	3.998	9200	44	7490	1665	32	142	34	4	145	1211	42	54	36782	6657
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.280	230	1	203	25	1	5	1	0	2	15	1	1	64	7
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.267	240	1	167	72	1	6	1	0	6	53	2	2	64	19
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.298	320	2	275	43	2	9	2	0	3	24	1	1	95	13
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.267	320	2	266	52	3	15	4	0	3	24	1	1	85	14
20	I 35 INTERCHANGE	Rural	3.635	9000	43	7295	1662	28	125	30	3	148	1231	43	55	32715	6041
20	CO RD R77 INTERCHANGE	Rural	2.453	8300	37	6306	1957	41	181	44	5	169	1406	49	64	20360	4801
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.298	50	0	31	19	1	6	1	0	1	8	0	0	15	6
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.267	45	0	28	16	1	3	1	0	1	10	0	0	12	4
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.311	45	0	32	13	0	1	0	0	1	10	0	0	14	4
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.267	45	0	34	11	0	1	0	0	1	8	0	0	12	3
20	WEST LINE OF HARDIN COUNTY	Rural	2.977	8300	37	6294	1968	42	189	45	5	169	1406	49	64	24709	5859
	ROUTE SUMMARY - RURAL		25.988	7450												193606	37710
	ROUTE SUMMARY - MUNICIPAL		3.777	6596												24916	4481